Home / 20,123,999.10-30,185,998.65-18,706,823.10

Finding the Fourth Proportional to 20,123,999.10, 30,185,998.65 and 18,706,823.10

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Solution

The fourth proportional to 20,123,999.10, 30,185,998.65 and 18,706,823.10 is: 28,060,234.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123,999.10 : 30,185,998.65 = 18,706,823.10 : x
  2. Step 2: Convert to fraction form
    20,123,999.10/30,185,998.65 = 18,706,823.10/x
  3. Step 3: Cross multiply
    20,123,999.10x = 30,185,998.65 × 18,706,823.10
  4. Step 4: Simplify right side
    20,123,999.10x = 564,684,136,842,388.88
  5. Step 5: Solve for x
    x = 564,684,136,842,388.88/20,123,999.10
  6. Step 6: Final answer
    x = 28,060,234.65

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.